Colo. Rev. Stat. § 38-22-104
The provisions of this article shall apply to all persons who do work or furnish laborers or materials, or mining, milling, or other machinery or other fixtures, as provided in section 38-22-101, for the working, preservation, prospecting, or development of any mine, lode, or mining claim or deposit yielding metals or minerals of any kind, or for the working, preservation, or development of any such mine, lode, or deposit, in search of any such metals or minerals; and to all persons who do work upon or furnish laborers or materials, mining, milling, and other machinery or other fixtures, as provided in section 38-22-101, upon, in, or for any shaft, tunnel, mill, or tunnel site, incline, adit, drift, or any draining or other improvement of or upon any such mine, lode, deposit, or tunnel site; and to every miner or other person who does work upon or furnishes any laborers, coal, power, provisions, timber, powder, rope, nails, candles, fuse, caps, rails, spikes, or iron, or other materials whatever, as provided in section 38-22-101, upon any mine, lode, deposit, mill, or tunnel site. But when two or more lodes, mines, or deposits owned or claimed by the same person are worked through a common shaft, tunnel, incline, adit, drift, or other excavation, then all the mines, mining claims, lodes, deposits, and tunnel and mill sites so owned and worked or developed, for the purpose of this article shall be deemed one mine. This section is not applicable to the owner of any mine, lode, mining claim, deposit, mill, or tunnel where the work or labor has been performed for or the laborers or materials furnished to a lessee.
C.R.S. § 38-22-104